Illumination light application structure and endoscope provided with the same
AssigneeOlympus Medical Systems Corp.
InventorSusumu Takahashi
Life of this patent
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Abstract
An illumination light application structure provided for irradiating an observation object with illumination light in an observation optical apparatus provided with an objective optical system inside a lens barrel whose top is configured into a slender shape, includes a wavelength converting element located in the proximity of a position of an entrance pupil of the objective optical system; a light source emitting light whose wavelength is converted by the wavelength converting element; and an irradiation device irradiating the wavelength converting element with the light emitted from the light source through the objective optical system.
Claims61
An illumination light application structure for irradiating an observation object with illumination light in an observation optical apparatus provided with an objective optical system inside a lens barrel whose top is configured into a slender shape, the illumination light application structure comprising:
- a wavelength converting element located proximate to a position of an entrance pupil of the objective optical system;
- a light source emitting light whose wavelength is converted by the wavelength converting element;
- and
- irradiation means irradiating, through the objective optical system, the wavelength converting element with the light emitted from the light source.
An illumination light application structure for irradiating an observation object with illumination light in an observation optical apparatus provided with an objective optical system inside a lens barrel whose top is configured into a slender shape, the illumination light application structure comprising:
- a fluorescent body located proximate to a position of an entrance pupil of the objective optical system;
- a light source emitting light for exciting the fluorescent body;
- and
- irradiation means irradiating the fluorescent body with the light emitted from the light source through the objective optical system.
An illumination light application structure for irradiating an observation object with illumination light in an observation optical apparatus provided with an objective optical system inside a lens barrel whose top is configured into a slender shape, the illumination light application structure comprising:
- an annular fluorescent body located proximate to a position of an entrance pupil of the objective optical system, having a size that an inside diameter is larger than a diameter of the entrance pupil of the observation optical system and an outside diameter is practically identical with a diameter of a lens of a largest diameter in the objective optical system;
- a light source emitting light for exciting the fluorescent body;
- and
- irradiation means irradiating the fluorescent body with the light emitted from the light source through the objective optical system.
An illumination light application structure for irradiating an observation object with illumination light in an observation optical apparatus provided with an objective optical system inside a lens barrel whose top is configured into a slender shape, the illumination light application structure comprising:
- an annular scattering body located proximate to a position of an entrance pupil of the objective optical system, having a size that an inside diameter is larger than a diameter of the entrance pupil of the objective optical system and an outside diameter is practically identical with a diameter of a lens of a largest diameter in the objective optical system;
- a light source;
- and
- irradiation means irradiating the scattering body with light emitted from the light source through the objective optical system.
Dependencies are inferred from the claim text.